Hidden information that lurks in your amex card number
Apr 27, 2010, 2:35 pm
#76
Join Date: May 2000
Location: Seattle, WA
Programs: Various
Posts: 2,155
The card sequence definition is slightly incorrect:
Take a look at my post here: http://www.flyertalk.com/forum/ameri...sing-date.html
Hence why if you change billing cycle, you will be given a new card and account number.
As a result of the account number only being 4 digits, that gives 10000 permutations within that billing cycle. So the product digits will potentially span multiple ranges:
So in the UK:
3742 88 is a UK Centurion Card (Sterling based)
3791 04 BA Premium Plus AmEx UK
I was a 3742 82 for Gold and Platinum charge card in UK - kept the same number. Though I am sure they are using other ranges now, as there will have been more than 100,000 customers in time on the Gold and Platinum charge products.
Don't forget if you go through more than 9 replacement cards (lost/stolen), then you will also consume a new account/card number as there is only a single digit for issue number within the 15-digit sequence. That's not that hard to do if you lose a card, and get a temporary card as you will jump 2 places very quickly. Ten years in, and I'm on #7 after a couple of fraud and replacment card situations, along with a new card number for the Titanium refresh.
Thanks,
Richard
Take a look at my post here: http://www.flyertalk.com/forum/ameri...sing-date.html
Hence why if you change billing cycle, you will be given a new card and account number.
As a result of the account number only being 4 digits, that gives 10000 permutations within that billing cycle. So the product digits will potentially span multiple ranges:
So in the UK:
3742 88 is a UK Centurion Card (Sterling based)
3791 04 BA Premium Plus AmEx UK
I was a 3742 82 for Gold and Platinum charge card in UK - kept the same number. Though I am sure they are using other ranges now, as there will have been more than 100,000 customers in time on the Gold and Platinum charge products.
Don't forget if you go through more than 9 replacement cards (lost/stolen), then you will also consume a new account/card number as there is only a single digit for issue number within the 15-digit sequence. That's not that hard to do if you lose a card, and get a temporary card as you will jump 2 places very quickly. Ten years in, and I'm on #7 after a couple of fraud and replacment card situations, along with a new card number for the Titanium refresh.
Thanks,
Richard
Apr 28, 2010, 8:36 am
#78
Join Date: Oct 2008
Location: BOS
Programs: AmEx Gold PR, BoA Plat Priv
Posts: 73
Apr 28, 2010, 10:36 am
#80
Moderator
Join Date: Jun 2003
Location: Miami, Mpls & London
Programs: AA & Marriott Perpetual Platinum; DL & HH Gold
Posts: 48,958
[Moderator enters...]
I have broken out the discussion of the merits of paying for both a Personal and a Business Platinum charge card into a new thread:
http://www.flyertalk.com/forum/ameri...rge-cards.html
[...moderator exits]
I have broken out the discussion of the merits of paying for both a Personal and a Business Platinum charge card into a new thread:
http://www.flyertalk.com/forum/ameri...rge-cards.html
[...moderator exits]
Apr 28, 2010, 11:18 am
#81
Join Date: Dec 2006
Location: USA
Posts: 3,945
[Moderator enters...]
I have broken out the discussion of the merits of paying for both a Personal and a Business Platinum charge card into a new thread:
http://www.flyertalk.com/forum/ameri...rge-cards.html
[...moderator exits]
I have broken out the discussion of the merits of paying for both a Personal and a Business Platinum charge card into a new thread:
http://www.flyertalk.com/forum/ameri...rge-cards.html
[...moderator exits]
Apr 29, 2010, 5:16 pm
#82
Join Date: Oct 2008
Location: Toronto, ON, Canada
Programs: Amex Centurion
Posts: 24
3735 here too (canada). Actually, when I went from Platinum to Centurion, only the last 4 numbers of my card changed. The first 11 digits were the same.
Apr 29, 2010, 9:34 pm
#83
Join Date: Jan 2010
Posts: 358
I have French Platinum and am also 3749 8
Answering other comments, when I upgraded from French Green to Platinum I was told I would get a Platinum with a new number and I could either cancel or keep my Green. This change of number makes sense because I kept the Green until the day Platinum was activated, and it was in the middle of a billing cycle of the Green.
Another topic : the security number on the cards. When I told one Amex representative my Platinum security number she looked quite surprised. Do you think this number can have any meaning ?
Answering other comments, when I upgraded from French Green to Platinum I was told I would get a Platinum with a new number and I could either cancel or keep my Green. This change of number makes sense because I kept the Green until the day Platinum was activated, and it was in the middle of a billing cycle of the Green.
Another topic : the security number on the cards. When I told one Amex representative my Platinum security number she looked quite surprised. Do you think this number can have any meaning ?
Apr 29, 2010, 10:19 pm
#84
Join Date: Oct 2009
Location: Omaha, NE
Programs: Amex Plat, Visa Signature
Posts: 39
I just upgraded my green to gold and they made me apply over again like I was a new customer. I have not gotten my gold in the mail yet so I do not know if my number has changed yet.
May 1, 2010, 11:09 am
#85
Join Date: May 2005
Location: SJC
Programs: NZ*G, QF NB, UA 1K, AA ExecPlat, IHG PlatAmb, HHonors Gold, SPG Gold, Marriott Gold, ZE1 PC
Posts: 2,636
3760 39 - Australia Platinum Charge Card
3760 66 - Australia Qantas Premium Card
3762 14 - Singapore Platinum Credit Card
3762 22 - Singapore Corporate Green Charge Card
3774 21 - New Zealand Gold & Platinum Charge Card
Anecdotally, 3761 and 3791 seem to be Malaysia.
3760 66 - Australia Qantas Premium Card
3762 14 - Singapore Platinum Credit Card
3762 22 - Singapore Corporate Green Charge Card
3774 21 - New Zealand Gold & Platinum Charge Card
Anecdotally, 3761 and 3791 seem to be Malaysia.
May 1, 2010, 12:09 pm
#86
Join Date: Mar 2008
Programs: Amex Centurion; Visa Infinite; Hertz Gold; Hilton Diamond; SPG Gold; Kempinski Private Concierge;
Posts: 214
I have French Platinum and am also 3749 8
Answering other comments, when I upgraded from French Green to Platinum I was told I would get a Platinum with a new number and I could either cancel or keep my Green. This change of number makes sense because I kept the Green until the day Platinum was activated, and it was in the middle of a billing cycle of the Green.
Another topic : the security number on the cards. When I told one Amex representative my Platinum security number she looked quite surprised. Do you think this number can have any meaning ?
Answering other comments, when I upgraded from French Green to Platinum I was told I would get a Platinum with a new number and I could either cancel or keep my Green. This change of number makes sense because I kept the Green until the day Platinum was activated, and it was in the middle of a billing cycle of the Green.
Another topic : the security number on the cards. When I told one Amex representative my Platinum security number she looked quite surprised. Do you think this number can have any meaning ?
You do not post enough numbers, Amex used 8 in every countries
80 means Platinum
88 means Centurion
I guess the French centurion is 3749-88 and 3749-80 for Plat
Isn't?
May 1, 2010, 3:42 pm
#87
Join Date: Apr 2001
Location: TX
Posts: 219
My understanding is the 4 digit CID security code is a function of when the card was physically issued and from which distribution facility/batch. A while back, I added two AU cards. Both cards arrived with the same 4 digit CID.
May 1, 2010, 4:09 pm
#88
Join Date: Dec 2000
Location: CDG, FRA
Posts: 1,600
The first Platinum cards issued in France in the 90's were 3749-88 (when Platinum was strictly "by invitation"). Now it's used for Centurion.
May 1, 2010, 9:52 pm
#89
Join Date: Apr 2005
Location: PHX
Posts: 3,796
3725 74 Costco TrueEarnings Amex
3713 44 Delta Gold Amex
Has anyone seen a 34xx xx card in the wild? My understanding is a handful were issued to keep dibs on the 34 range, but it's otherwise unused.
You might also look at the back of store-branded gift cards. If the number starts with 37 (or 34), it's processed through Amex.
3713 44 Delta Gold Amex
Has anyone seen a 34xx xx card in the wild? My understanding is a handful were issued to keep dibs on the 34 range, but it's otherwise unused.
You might also look at the back of store-branded gift cards. If the number starts with 37 (or 34), it's processed through Amex.
Last edited by alanh; May 1, 2010 at 10:07 pm
May 1, 2010, 11:32 pm
#90
Join Date: Jan 2010
Location: Worldwide
Programs: Amex Plat, BMI Silver
Posts: 401
3725 74 Costco TrueEarnings Amex
3713 44 Delta Gold Amex
Has anyone seen a 34xx xx card in the wild? My understanding is a handful were issued to keep dibs on the 34 range, but it's otherwise unused.
You might also look at the back of store-branded gift cards. If the number starts with 37 (or 34), it's processed through Amex.
3713 44 Delta Gold Amex
Has anyone seen a 34xx xx card in the wild? My understanding is a handful were issued to keep dibs on the 34 range, but it's otherwise unused.
You might also look at the back of store-branded gift cards. If the number starts with 37 (or 34), it's processed through Amex.